Base | Representation |
---|---|
bin | 10111111100011101… |
… | …11111111000011111 |
3 | 1020011220110211202110 |
4 | 23332032333320133 |
5 | 202311422413020 |
6 | 5523341125103 |
7 | 633365032626 |
oct | 137616777037 |
9 | 36156424673 |
10 | 12855279135 |
11 | 54a7519536 |
12 | 25a9259793 |
13 | 129b40095a |
14 | 89d4566bd |
15 | 5038b68e0 |
hex | 2fe3bfe1f |
12855279135 has 16 divisors (see below), whose sum is σ = 20580636384. Its totient is φ = 6852085632.
The previous prime is 12855279061. The next prime is 12855279137. The reversal of 12855279135 is 53197255821.
It is not a de Polignac number, because 12855279135 - 28 = 12855278879 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12855279137) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227712 + ... + 278501.
It is an arithmetic number, because the mean of its divisors is an integer number (1286289774).
Almost surely, 212855279135 is an apocalyptic number.
12855279135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
12855279135 is a deficient number, since it is larger than the sum of its proper divisors (7725357249).
12855279135 is a wasteful number, since it uses less digits than its factorization.
12855279135 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 507914.
The product of its digits is 756000, while the sum is 48.
The spelling of 12855279135 in words is "twelve billion, eight hundred fifty-five million, two hundred seventy-nine thousand, one hundred thirty-five".
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